Question about 1998 Chrysler Concorde

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Can I use a used body control module?

The dealer service center has diagnosed a problem with the heating/cooling system as needing a new body control module. Trouble is, a new one costs $750 plus installation. I can get one at the local scrap yard parts store, but I've been told that it might not work if it comes from a car that doesn't have the same trim level and accessories as mine. I've also been told that these computers may be irreversibly programed with a car's vin number so that a BCM will only ever work with one car. Is this true, or could I save money and install a used one? Thanks for any help.

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  • cf_guthrie Dec 26, 2008

    Thanks for this. I have read a long thread of a person with a similar problem and had reached the same conclusion. It is good to have it confirmed, I guess. Umm, I wonder if this is one the reasons Detroit is tanking -- seems like a design problem to build such a part to begin with.

  • Anonymous Jan 17, 2009

    what is powertrain control module

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  • Master
  • 512 Answers

Everything you have been told is true. you can even damage the powertrain control module in the process and cause yourself even more money

Posted on Dec 26, 2008

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I have a 03 envoy xl and replaced the old body control module with a used on how do I reset it?


It has to be programmed for sure if it can be used at all . Most GM vehicle do not allow used BCM'S . It will lock up with out proper vin number an anti-theft system information installed . Your best bet is call the dealer or an independent mobile technician in you area that does reprogramming . If I may ask what kind of problems were you having that makes you think the BCM needed to be replaced ? Was a Professional type scan tool used to see if the BCM was able to communicate ? Were power an grounds checked ? Fuse's etc... I see it a lot working at the dealer , not just GM vehicles either . Customer changed out module when it didn't need it.
If installing a replacement BCM, program the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration .
An you need a subscription on GM web site , GM scan tool or a J-2534 Pass-through Device programming tool .
The procedures below are designed to set-up the body control module (BCM) correctly during BCM related service. Before you start, read these procedures carefully and completely.
Important: The following procedures must be followed:
  1. Programming the BCM
  2. Programming Theft Deterrent System Components, if equipped with Passlock System
  3. Relearn Restraints ID
If you don't understand what this guy talks about , you really need to take it to the dealer.

Control Module Diagnostics with John Anello

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Wrench light means you have a fault or service is due. Not sure what fault is . If it is a fuse the part cost is small, not sure about labour cost, it depends on where fuse is located but shouldn't take more than a few minutes. Hope this helps

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Red blinking light , anti-theft system ! Your best bet is take it to the dealer (tow) . This starting system is controlled by a computer , be it a BCM - body control module or the PCM powertrain control module . Very complicated messaging between the BCM an PCM on CCD serial data bus Takes place . You need a factory scan tool to diagnose these type problems .

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I have a 2006 Pontiac torrento and my steering wheel gets hard. not all the time it dos it 1 a day at least Dont know whats the problem i have try to check for the fuled but no luck plz help


Your vehicle has electric power steering . GM had a recall on some of it's vehicle .
The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions. The PSCM, torque sensor, nor the EPS motor are serviced separately from each other or from the steering column. Ant EPS components diagnosed to be malfunctioning requires replacement of the steering column assembly, also known as the EPS assembly.

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Power stering failure saturn ion 2006


Hey Alex , what would you like to know ? Your vehicle has Electronic power steering , controlled by a control module .
The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions. The PSCM, torque sensor, not the EPS motor are serviced separately from each other or from the steering column. Any EPS components diagnosed to be malfunctioning requires replacement of the steering column assembly, also known as the EPS assembly.
They had a recall on these systems ! Suggest you take it to a GM dealer , Chevy , Cadillac , Buick , etc.....

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My 2003 impalas traction control wont shut off tried a new switch it has new hubs on it any ideas


Before replacing parts there is a specific way to start diagnostics an a professional grade scan tool is a must ! a code reader can not access the body control module , or the EBCM - electronic brake control module or instrument cluster ! All these modules communicate on the class 2 serial data bus.
Begin the system diagnosis with Diagnostic System Check - ABS . The Diagnostic System Check will provide the following information:
?€¢
The identification of the control modules which command the system


?€¢
The ability of the control modules to communicate through the serial data circuit


?€¢
The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
The traction control switch is a input to the body control module, with a scan tool hooked up an looking at BCM data ,check for conformation the traction control switch is turning on an off !
SERVICE TRACTION SYSTEM The IPC illuminates the SERVICE TRACTION SYSTEM indicator in the message center when the electronic brake control module (EBCM) detects a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination. The SERVICE TRACTION SYSTEM indicator illuminates for 60 seconds when the condition is present. The IPC sends a class 2 message to the radio in order to activate an audible warning.
TRAC OFF The IPC illuminates the TRAC OFF indicator when the following occurs:
?€¢
The electronic brake control module (EBCM) inhibits the traction control system due to a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination.


?€¢
The body control module (BCM) detects that the traction control switch has been pressed (signal circuit is low). The BCM sends a class 2 message to the EBCM in order to disable traction control. The IPC receives a class 2 message from the EBCM requesting illumination. The BCM sends a class 2 message to the radio in order to activate an audible warning.

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Headlights not staying on while driving 2010 Dodge Grand Caravan. I took to a service center and they suggested replacing the light control module "switch", but have to take to the dealership. Dealership...


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Power Steering - System Description and Operation
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Your Cobalt is not equipped with a Power Steering Pump. It is equipped with electric power steering. See the description below.


Power Steering - System Description and Operation
The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions. The PSCM, torque sensor, not the EPS motor are serviced separately from each other or from the steering column. Any EPS components diagnosed to be malfunctioning requires replacement of the steering column assembly, also known as the EPS assembly.

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